- Companies
- Plumbers and heating engineers
- Dartford
- SM & Son's Services Ltd
SM & Son's Services Ltd
- Company number
- 16451216
- Incorporated
- 14 May 20251 year trading
- Registered office
- 10 Chaucer Way, Dartford, DA1 5JU
- Nature of business
- Plumbing, heat and air-conditioning installation
SM & Son's Services Ltd is a 1-year-old private limited company registered in Dartford, company number 16451216, one of 121 plumbing and heating companies in Dartford. Its next accounts are due at Companies House on 14 February 2027, and its first CT600 is due at HMRC on 13 May 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for SM & Son's Services LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where SM & Son's Services Ltd is registered
The registered office is in Dartford (DA1), in the Dartford local authority area, South East. Show DA1 5JU on a map.
Other trade companies in DA1
- Unit 6 Bespoke LtdSpecialist contractors
- Smartlifting LtdBuilders
- Degrees Bespoke Finishes LtdPlasterers
- A & A Electrical and Refrigeration LtdBuilders
- Elm Servicing LtdMachinery repair and installation
- WND Refrigeration LimitedPlumbers and heating engineers
- Moore Flooring and Sons LtdFloor and wall tilers
- Kinergy Systems LtdElectricians
What happens if SM & Son's Services Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 14 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 Feb 2027 to 14 Mar 2027 | £150 |
| 1 to 3 months late | 15 Mar 2027 to 14 May 2027 | £375 |
| 3 to 6 months late | 15 May 2027 to 14 Aug 2027 | £750 |
| More than 6 months late | From 15 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 16451216
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 May 2025 (1 year ago)
- Registered office
- 10 Chaucer Way, Dartford, DA1 5JU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 13 May 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Dartford
Other active plumbing and heating companies registered in Dartford.
- Smart Plus Group Ltd2021
- Southern Soft Water Ltd2022
- Streatfields Limited2000
- Sunnydan Gas and Plumbing Solutions Ltd2018
- SW8 Associates Limited2011
- T Trivett & Sons Limited2007
- Taymill Building Engineering Services Limited2006
- The Plumber (Dartford) Ltd2023
All plumbing and heating companies in Dartford · All trades in Dartford · Plumbers and heating engineers across the UK
Frequently asked questions
When are SM & Son's Services Ltd's accounts due?
SM & Son's Services Ltd's next accounts are due at Companies House by 14 February 2027 (in 124 days), covering the period to 31 May 2026.
When is SM & Son's Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 13 May 2026, due by 13 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is SM & Son's Services Ltd still trading?
SM & Son's Services Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does SM & Son's Services Ltd do?
SM & Son's Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is SM & Son's Services Ltd?
SM & Son's Services Ltd was incorporated on 14 May 2025, 1 year ago.
What is the penalty if SM & Son's Services Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View SM & Son's Services Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.